Battle Hardened General Stuck

One of my battle hardened generals has become stuck. I try to send him to an adventure, he packs up and walks a little ways to the nearest storehouse then disappears. He shows as transferring in the star menu but then a few moments later he rebuilds his garrison.

I have tried moving his garrison, adding and removing units but it is always the same result.

I've included a screenshot of the location he is stuck in.

After 10+ attempts to send general to an adventure which never worked I figured out he was being returned everytime I tried to visit the adventure while he was traveling. I sent him once more and didnt visit the adventure for 20 minutes and when I did he had arrived. So problem solved for me, not sure what casued the bug though.